package com.qf;

public class Main {
    public static void main(String[] args) {

        System.out.println("Hello world!");
        System.out.println("aaaaaaaaaaa");
        System.out.println("bbbbbbbbbbb");
        System.out.println("BBBBBBBBBBB");
        System.out.println("AAAAAAAAAAA");
        System.out.println("分支。。。。。");
        System.out.println("111111111111");
        System.out.println("22222222222");
    }
}